The article begins with a survey of the discussion of, and attitudes toward distinguishing biological sex and gender behaviour in professional literature. Especially in distinguishing transvestism, transexualism, gender non-conformity, and more situational uses of cross-gender behavior. This article focuses more on those situational uses rather than cross-dressing as a feature of gender or sexual identity.

One of the premises of astrology is that it predetermines various personality traits, as well as aspects of the course of one’s life. As applied to sexual preference, astrology provides at least a vague analog to the notion of an inborn orientation toward certain types of sexual activities and partners, although the ways these activities and partners are categorized don’t necessarily align with modern categories.